Hi,
I had a CP 8 week's ago.
It's where to egg and sperm meet, but unfortunetly does not implant properly and if a woman had never tested she would of never known any thing.
My exsperience is, i was testing very early and kept getting very faint lines but the clear blue digital would never give me a "pregnant"
I had symptoms of peeing loads and drinking loads nothing else, i already have 2dc and i know i had more symptoms than that.. i just knew something wasn't right, so i kept testing again all faint lines! (never once got a dark line)
When Friday came (my AF due date) i FINALLY got a "pregnant 1-2 weeks" on the digital but still i didnt feel right about it.
That night before bed i had period pains went to the loo and blood, which continued like a period. went to doctors etc no precedures apart from when finished the bleed to do another test just to make sure (as woman can bleed and baby be fine)
Unfortunetly they are very common and my doctor said they are called "early miscaridges" and they dont like to call them CP which is finbe by me as when asked as alot of woman actually dont know about them , including me till it happend.
I hope that you are not going through it and i wish you the best of luck.